Owl Howl and the BLU-BLU

Everyone's favorite little owl is back in this ticklish tale. Little Owl is in tears when she can't find her BLU-BLU! It's gone! The hedgehog is the first to investigate. Who's gone? What's gone? But when the little owl tries to explain what a BLU-BLU is, everyone gets a different idea—It sounds like something you'd eat! I think it's a ball! It's a game! What on earth could a BLU-BLU be?